Panda3D
Public Member Functions | Static Public Member Functions | Public Attributes | List of all members
EggData Class Reference

This is the primary interface into all the egg data, and the root of the egg file structure. More...

#include "eggData.h"

Inheritance diagram for EggData:
EggGroupNode EggNode EggNamedObject EggObject Namable TypedReferenceCount MemoryBase TypedObject ReferenceCount MemoryBase MemoryBase

Public Member Functions

 EggData (const EggData &copy)
 
int collapse_equivalent_materials ()
 Removes duplicate references to the same material with the same properties. More...
 
int collapse_equivalent_textures ()
 Removes duplicate references to the same texture image with the same properties. More...
 
virtual TypeHandle force_init_type ()
 
bool get_auto_resolve_externals () const
 
CoordinateSystem get_coordinate_system () const
 
const Filenameget_egg_filename () const
 
time_t get_egg_timestamp () const
 
virtual TypeHandle get_type () const
 
bool load_externals (const DSearchPath &searchpath=DSearchPath())
 Loads up all the egg files referenced by <File> entries within the egg structure, and inserts their contents in place of the <File> entries. More...
 
bool load_externals (const DSearchPath &searchpath, BamCacheRecord *record)
 Loads up all the egg files referenced by <File> entries within the egg structure, and inserts their contents in place of the <File> entries. More...
 
void merge (EggData &other)
 Appends the other egg structure to the end of this one. More...
 
EggDataoperator= (const EggData &copy)
 
bool original_had_absolute_pathnames () const
 Returns true if the data processed in the last call to read() contained absolute pathnames, or false if those pathnames were all relative. More...
 
bool read (Filename filename, std::string display_name=std::string())
 Opens the indicated filename and reads the egg data contents from it. More...
 
bool read (std::istream &in)
 Parses the egg syntax contained in the indicated input stream. More...
 
void recompute_polygon_normals ()
 Recomputes all the polygon normals for polygon geometry at this group node and below so that they accurately reflect the vertex positions. More...
 
void recompute_vertex_normals (double threshold)
 Recomputes all the vertex normals for polygon geometry at this group node and below so that they accurately reflect the vertex positions. More...
 
void set_auto_resolve_externals (bool resolve)
 
void set_coordinate_system (CoordinateSystem coordsys)
 
void set_egg_filename (const Filename &egg_filename)
 
void set_egg_timestamp (time_t egg_timestamp)
 
void strip_normals ()
 Removes all normals from primitives, and the vertices they reference, at this node and below. More...
 
bool write_egg (Filename filename)
 The main interface for writing complete egg files. More...
 
bool write_egg (std::ostream &out)
 The main interface for writing complete egg files. More...
 
- Public Member Functions inherited from EggGroupNode
 EggGroupNode (const std::string &name="")
 
 EggGroupNode (const EggGroupNode &copy)
 
EggNodeadd_child (EggNode *node)
 Adds the indicated child to the group and returns it. More...
 
void apply_first_attribute (bool recurse)
 Sets the first vertex of the triangle (or each component) to the primitive normal and/or color, if the primitive is flat-shaded. More...
 
void apply_last_attribute (bool recurse)
 Sets the last vertex of the triangle (or each component) to the primitive normal and/or color, if the primitive is flat-shaded. More...
 
iterator begin () const
 
void clear ()
 
void clear_connected_shading ()
 Resets the connected_shading information on all primitives at this node and below, so that it may be accurately rederived by the next call to get_connected_shading(). More...
 
bool empty () const
 
iterator end () const
 
iterator erase (iterator position)
 
iterator erase (iterator first, iterator last)
 
EggNodefind_child (const std::string &name) const
 Returns the child of this node whose name is the indicated string, or NULL if there is no child of this node by that name. More...
 
void force_filenames (const Filename &directory)
 Similar to resolve_filenames, but each non-absolute filename encountered is arbitrarily taken to be in the indicated directory, whether or not the so- named filename exists. More...
 
void get_connected_shading ()
 Queries the connected_shading information on all primitives at this node and below, to ensure that it has been completely filled in before we start mucking around with vertices. More...
 
EggNodeget_first_child ()
 Returns the first child in the group's list of children, or NULL if the list of children is empty. More...
 
EggNodeget_next_child ()
 Returns the next child in the group's list of children since the last call to get_first_child() or get_next_child(), or NULL if the last child has been returned. More...
 
bool has_absolute_pathnames () const
 Returns true if any nodes at this level and below include a reference to a file via an absolute pathname, or false if all references are relative. More...
 
virtual bool has_normals () const
 Returns true if any of the primitives (e.g. More...
 
virtual bool has_primitives () const
 Returns true if there are any primitives (e.g. More...
 
iterator insert (iterator position, PT(EggNode) x)
 
virtual bool joint_has_primitives () const
 Returns true if there are any primitives (e.g. More...
 
void make_point_primitives ()
 Creates PointLight primitives to reference any otherwise unreferences vertices discovered in this group or below. More...
 
void mesh_triangles (int flags)
 Combine triangles together into triangle strips, at this group and below. More...
 
EggGroupNodeoperator= (const EggGroupNode &copy)
 
void post_apply_flat_attribute (bool recurse)
 Intended as a followup to apply_last_attribute(), this also sets an attribute on the first vertices of the primitive, if they don't already have an attribute set, just so they end up with *something*. More...
 
 PT (EggNode) remove_child(EggNode *node)
 
reverse_iterator rbegin () const
 
void rebuild_vertex_pools (EggVertexPools &vertex_pools, unsigned int max_vertices, bool recurse)
 Copies vertices used by the primitives at this group node (and below, if recurse is true) into one or more new vertex pools, and updates the primitives to reference these pools. More...
 
void recompute_polygon_normals (CoordinateSystem cs=CS_default)
 Recomputes all the polygon normals for polygon geometry at this group node and below so that they accurately reflect the vertex positions. More...
 
bool recompute_tangent_binormal (const GlobPattern &uv_name)
 This function recomputes the tangent and binormal for the named texture coordinate set for all vertices at this level and below. More...
 
bool recompute_tangent_binormal (const vector_string &names)
 This function recomputes the tangent and binormal for the named texture coordinate sets. More...
 
bool recompute_tangent_binormal_auto ()
 This function recomputes the tangent and binormal for any texture coordinate set that affects a normal map. More...
 
void recompute_vertex_normals (double threshold, CoordinateSystem cs=CS_default)
 Recomputes all the vertex normals for polygon geometry at this group node and below so that they accurately reflect the vertex positions. More...
 
int remove_invalid_primitives (bool recurse)
 Removes primitives at this level and below which appear to be degenerate; e.g. More...
 
int remove_unused_vertices (bool recurse)
 Removes all vertices from VertexPools within this group or below that are not referenced by at least one primitive. More...
 
int rename_nodes (vector_string strip_prefix, bool recurse)
 Rename by stripping out the prefix. More...
 
reverse_iterator rend () const
 
void replace (iterator position, PT(EggNode) x)
 Replaces the node at the indicated position with the indicated node. More...
 
void resolve_filenames (const DSearchPath &searchpath)
 Walks the tree and attempts to resolve any filenames encountered. More...
 
void reverse_vertex_ordering ()
 Reverses the vertex ordering of all polygons defined at this node and below. More...
 
size_type size () const
 
void steal_children (EggGroupNode &other)
 Moves all the children from the other node to this one. More...
 
void strip_normals ()
 Removes all normals from primitives, and the vertices they reference, at this node and below. More...
 
int triangulate_polygons (int flags)
 Replace all higher-order polygons at this point in the scene graph and below with triangles. More...
 
void unify_attributes (bool use_connected_shading, bool allow_per_primitive, bool recurse)
 Applies per-vertex normal and color to all vertices, if they are in fact per-vertex (and different for each vertex), or moves them to the primitive if they are all the same. More...
 
- Public Member Functions inherited from EggNode
 EggNode (const std::string &name="")
 
 EggNode (const EggNode &copy)
 
void apply_texmats ()
 Applies the texture matrices to the UV's of the vertices that reference them, and then removes the texture matrices from the textures themselves. More...
 
virtual EggRenderModedetermine_alpha_mode ()
 Walks back up the hierarchy, looking for an EggGroup or EggPrimitive or some such object at this level or above this node that has an alpha_mode other than AM_unspecified. More...
 
virtual EggRenderModedetermine_bin ()
 Walks back up the hierarchy, looking for an EggGroup or EggPrimitive or some such object at this level or above this node that has a bin specified. More...
 
virtual bool determine_decal ()
 Walks back up the hierarchy, looking for an EggGroup at this level or above that has the "decal" flag set. More...
 
virtual EggRenderModedetermine_depth_offset ()
 Walks back up the hierarchy, looking for an EggGroup or EggPrimitive or some such object at this level or above this node that has a depth_offset specified. More...
 
virtual EggRenderModedetermine_depth_test_mode ()
 Walks back up the hierarchy, looking for an EggGroup or EggPrimitive or some such object at this level or above this node that has a depth_test_mode other than DTM_unspecified. More...
 
virtual EggRenderModedetermine_depth_write_mode ()
 Walks back up the hierarchy, looking for an EggGroup or EggPrimitive or some such object at this level or above this node that has a depth_write_mode other than DWM_unspecified. More...
 
virtual EggRenderModedetermine_draw_order ()
 Walks back up the hierarchy, looking for an EggGroup or EggPrimitive or some such object at this level or above this node that has a draw_order specified. More...
 
virtual bool determine_indexed ()
 Walks back up the hierarchy, looking for an EggGroup at this level or above that has the "indexed" scalar set. More...
 
virtual EggRenderModedetermine_visibility_mode ()
 Walks back up the hierarchy, looking for an EggGroup or EggPrimitive or some such object at this level or above this node that has a visibility_mode other than VM_unspecified. More...
 
void flatten_transforms ()
 Removes any transform and instance records from this node in the scene graph and below. More...
 
int get_depth () const
 
const LMatrix4d & get_node_frame () const
 Returns the coordinate frame of the node itself. More...
 
const LMatrix4d & get_node_frame_inv () const
 Returns the inverse of the matrix returned by get_node_frame(). More...
 
const LMatrix4d * get_node_frame_inv_ptr () const
 Returns either a NULL pointer or a unique pointer shared by nodes with the same get_node_frame_inv() matrix. More...
 
const LMatrix4d * get_node_frame_ptr () const
 Returns either a NULL pointer or a unique pointer shared by nodes with the same get_node_frame() matrix. More...
 
const LMatrix4d & get_node_to_vertex () const
 Returns the transformation matrix suitable for converting vertices in the coordinate space of the node to the appropriate coordinate space for storing in the egg file. More...
 
const LMatrix4d * get_node_to_vertex_ptr () const
 Returns either a NULL pointer or a unique pointer shared by nodes with the same get_node_to_vertex() matrix. More...
 
EggGroupNodeget_parent () const
 
const LMatrix4d & get_vertex_frame () const
 Returns the coordinate frame of the vertices referenced by primitives at or under this node. More...
 
const LMatrix4d & get_vertex_frame_inv () const
 Returns the inverse of the matrix returned by get_vertex_frame(). More...
 
const LMatrix4d * get_vertex_frame_inv_ptr () const
 Returns either a NULL pointer or a unique pointer shared by nodes with the same get_vertex_frame_inv() matrix. More...
 
const LMatrix4d * get_vertex_frame_ptr () const
 Returns either a NULL pointer or a unique pointer shared by nodes with the same get_vertex_frame() matrix. More...
 
const LMatrix4d & get_vertex_to_node () const
 Returns the transformation matrix suitable for converting the vertices as read from the egg file into the coordinate space of the node. More...
 
const LMatrix4d * get_vertex_to_node_ptr () const
 Returns either a NULL pointer or a unique pointer shared by nodes with the same get_vertex_to_node() matrix. More...
 
virtual bool is_anim_matrix () const
 Returns true if this node represents a table of animation transformation data, false otherwise. More...
 
virtual bool is_joint () const
 Returns true if this particular node represents a <Joint> entry or not. More...
 
bool is_local_coord () const
 Returns true if this node's vertices are not in the global coordinate space. More...
 
bool is_under_instance () const
 Returns true if there is an <Instance> node somewhere in the egg tree at or above this node, false otherwise. More...
 
bool is_under_transform () const
 Returns true if there is a <Transform> entry somewhere in the egg tree at or above this node, false otherwise. More...
 
EggNodeoperator= (const EggNode &copy)
 
bool parse_egg (const std::string &egg_syntax)
 Parses the egg syntax given in the indicate string as if it had been read from the egg file within this object's definition. More...
 
int rename_node (vector_string strip_prefix)
 Rename by stripping out the prefix. More...
 
void test_under_integrity () const
 
void transform (const LMatrix4d &mat)
 Applies the indicated transformation to the node and all of its descendants. More...
 
void transform_vertices_only (const LMatrix4d &mat)
 Applies the indicated transformation only to vertices that appear in global space within vertex pools at this node and below. More...
 
- Public Member Functions inherited from EggNamedObject
 EggNamedObject (const std::string &name="")
 
 EggNamedObject (const EggNamedObject &copy)
 
EggNamedObjectoperator= (const EggNamedObject &copy)
 
void output (std::ostream &out) const
 
void write_header (std::ostream &out, int indent_level, const char *egg_keyword) const
 Writes the first line of the egg object, e.g. More...
 
- Public Member Functions inherited from EggObject
 EggObject (const EggObject &copy)
 
virtual EggTransformas_transform ()
 Returns this object cross-cast to an EggTransform pointer, if it inherits from EggTransform, or NULL if it does not. More...
 
void clear_user_data ()
 Removes *all* user data pointers from the node. More...
 
void clear_user_data (TypeHandle type)
 Removes the user data pointer of the indicated type. More...
 
EggUserDataget_user_data () const
 Returns the user data pointer most recently stored on this object, or NULL if nothing was previously stored. More...
 
EggUserDataget_user_data (TypeHandle type) const
 Returns the user data pointer of the indicated type, if it exists, or NULL if it does not. More...
 
bool has_user_data () const
 Returns true if a generic user data pointer has recently been set and not yet cleared, false otherwise. More...
 
bool has_user_data (TypeHandle type) const
 Returns true if the user data pointer of the indicated type has been set, false otherwise. More...
 
EggObjectoperator= (const EggObject &copy)
 
void set_user_data (EggUserData *user_data)
 Sets the user data associated with this object. More...
 
- Public Member Functions inherited from TypedReferenceCount
 TypedReferenceCount (const TypedReferenceCount &copy)
 
void operator= (const TypedReferenceCount &copy)
 
- Public Member Functions inherited from TypedObject
 TypedObject (const TypedObject &copy)=default
 
TypedObjectas_typed_object ()
 Returns the object, upcast (if necessary) to a TypedObject pointer. More...
 
const TypedObjectas_typed_object () const
 Returns the object, upcast (if necessary) to a TypedObject pointer. More...
 
int get_best_parent_from_Set (const std::set< int > &) const
 
int get_type_index () const
 Returns the internal index number associated with this object's TypeHandle, a unique number for each different type. More...
 
bool is_exact_type (TypeHandle handle) const
 Returns true if the current object is the indicated type exactly. More...
 
bool is_of_type (TypeHandle handle) const
 Returns true if the current object is or derives from the indicated type. More...
 
TypedObjectoperator= (const TypedObject &copy)=default
 
- Public Member Functions inherited from ReferenceCount
int get_ref_count () const
 
WeakReferenceListget_weak_list () const
 Returns the WeakReferenceList associated with this ReferenceCount object. More...
 
bool has_weak_list () const
 Returns true if this particular ReferenceCount object has a WeakReferenceList created, false otherwise. More...
 
void local_object ()
 This function should be called, once, immediately after creating a new instance of some ReferenceCount-derived object on the stack. More...
 
void ref () const
 Explicitly increments the reference count. More...
 
bool ref_if_nonzero () const
 Atomically increases the reference count of this object if it is not zero. More...
 
bool test_ref_count_integrity () const
 Does some easy checks to make sure that the reference count isn't completely bogus. More...
 
bool test_ref_count_nonzero () const
 Does some easy checks to make sure that the reference count isn't zero, or completely bogus. More...
 
virtual bool unref () const
 Explicitly decrements the reference count. More...
 
WeakReferenceListweak_ref ()
 Adds the indicated PointerToVoid as a weak reference to this object. More...
 
void weak_unref ()
 Removes the indicated PointerToVoid as a weak reference to this object. More...
 
- Public Member Functions inherited from Namable
 Namable (const std::string &initial_name="")
 
void clear_name ()
 Resets the Namable's name to empty. More...
 
const std::string & get_name () const
 
bool has_name () const
 Returns true if the Namable has a nonempty name set, false if the name is empty. More...
 
void output (std::ostream &out) const
 Outputs the Namable. More...
 
void set_name (const std::string &name)
 

Static Public Member Functions

static TypeHandle get_class_type ()
 
static void init_type ()
 
static bool resolve_egg_filename (Filename &egg_filename, const DSearchPath &searchpath=DSearchPath())
 Looks for the indicated filename, first along the indicated searchpath, and then along the model_path. More...
 
- Static Public Member Functions inherited from EggGroupNode
static TypeHandle get_class_type ()
 
static void init_type ()
 
static bool is_right (const LVector2d &v1, const LVector2d &v2)
 Returns true if the 2-d v1 is to the right of v2. More...
 
- Static Public Member Functions inherited from EggNode
static TypeHandle get_class_type ()
 
static void init_type ()
 
- Static Public Member Functions inherited from EggNamedObject
static TypeHandle get_class_type ()
 
static void init_type ()
 
- Static Public Member Functions inherited from EggObject
static TypeHandle get_class_type ()
 
static void init_type ()
 
- Static Public Member Functions inherited from TypedReferenceCount
static TypeHandle get_class_type ()
 
static void init_type ()
 
- Static Public Member Functions inherited from TypedObject
static TypeHandle get_class_type ()
 
static void init_type ()
 This function is declared non-inline to work around a compiler bug in g++ 2.96. More...
 
- Static Public Member Functions inherited from ReferenceCount
static TypeHandle get_class_type ()
 
static void init_type ()
 
- Static Public Member Functions inherited from Namable
static TypeHandle get_class_type ()
 
static void init_type ()
 

Public Attributes

 get_auto_resolve_externals
 Indicates whether the EggData object will automatically resolve any external references when read() is called. More...
 
 get_coordinate_system
 Returns the coordinate system in which the egg file is defined. More...
 
 get_egg_filename
 Returns the directory in which the egg file is considered to reside. More...
 
 get_egg_timestamp
 Returns the timestamp of the egg file on disk, at the time it was opened for reading, or 0 if this information is not available. More...
 
 set_auto_resolve_externals
 Indicates whether the EggData object will automatically resolve any external references when read() is called. More...
 
 set_coordinate_system
 Changes the coordinate system of the EggData. More...
 
 set_egg_filename
 Sets the filename–especially the directory part–in which the egg file is considered to reside. More...
 
 set_egg_timestamp
 Sets the timestamp of the egg file on disk, at the time it was opened for reading. More...
 
- Public Attributes inherited from EggGroupNode
 get_children
 
- Public Attributes inherited from EggNode
 get_depth
 Returns the number of nodes above this node in the egg hierarchy. More...
 
 get_parent
 
- Public Attributes inherited from TypedObject
 get_type
 
- Public Attributes inherited from ReferenceCount
 get_ref_count
 Returns the current reference count. More...
 
- Public Attributes inherited from Namable
 get_name
 
 set_name
 

Additional Inherited Members

- Public Types inherited from EggGroupNode
typedef Children::const_iterator const_iterator
 
typedef Children::const_pointer const_pointer
 
typedef Children::const_reference const_reference
 
typedef Children::const_reverse_iterator const_reverse_iterator
 
typedef Children::difference_type difference_type
 
typedef Children::const_iterator iterator
 
typedef Children::const_pointer pointer
 
typedef Children::const_reference reference
 
typedef Children::const_reverse_iterator reverse_iterator
 
typedef Children::size_type size_type
 
enum  TriangulateFlags {
  T_polygon = 0x001, T_convex = 0x002, T_composite = 0x004, T_recurse = 0x008,
  T_flat_shaded = 0x010
}
 

Detailed Description

This is the primary interface into all the egg data, and the root of the egg file structure.

An EggData structure corresponds exactly with an egg file on the disk.

The EggData class inherits from EggGroupNode its collection of children, which are accessed by using the EggData itself as an STL container with begin() and end() calls. The children of the EggData class are the toplevel nodes in the egg file.

Definition at line 37 of file eggData.h.

Member Function Documentation

◆ collapse_equivalent_materials()

int EggData::collapse_equivalent_materials ( )

Removes duplicate references to the same material with the same properties.

Considers two material references with identical properties, but different mref names, to be equivalent, and collapses them, choosing one mref name to keep arbitrarily. Returns the number of materials removed.

Definition at line 201 of file eggData.cxx.

References EggMaterialCollection::collapse_equivalent_materials(), and EggMaterialCollection::find_used_materials().

◆ collapse_equivalent_textures()

int EggData::collapse_equivalent_textures ( )

Removes duplicate references to the same texture image with the same properties.

Considers two texture references with identical properties, but different tref names, to be equivalent, and collapses them, choosing one tref name to keep arbitrarily. Returns the number of textures removed.

Definition at line 187 of file eggData.cxx.

References EggTextureCollection::collapse_equivalent_textures(), and EggTextureCollection::find_used_textures().

◆ load_externals() [1/2]

bool EggData::load_externals ( const DSearchPath searchpath = DSearchPath())

Loads up all the egg files referenced by <File> entries within the egg structure, and inserts their contents in place of the <File> entries.

Searches for files in the searchpath, if not found directly, and writes error messages to the indicated output stream. Returns true if all externals were loaded successfully, false otherwise.

Definition at line 162 of file eggData.cxx.

References get_coordinate_system.

◆ load_externals() [2/2]

bool EggData::load_externals ( const DSearchPath searchpath,
BamCacheRecord record 
)

Loads up all the egg files referenced by <File> entries within the egg structure, and inserts their contents in place of the <File> entries.

Searches for files in the searchpath, if not found directly, and writes error messages to the indicated output stream. Returns true if all externals were loaded successfully, false otherwise.

Definition at line 175 of file eggData.cxx.

◆ merge()

void EggData::merge ( EggData other)

Appends the other egg structure to the end of this one.

The other egg structure is invalidated.

Definition at line 139 of file eggData.cxx.

References get_coordinate_system.

◆ original_had_absolute_pathnames()

bool EggData::original_had_absolute_pathnames ( ) const
inline

Returns true if the data processed in the last call to read() contained absolute pathnames, or false if those pathnames were all relative.

This method is necessary because if auto_resolve_externals() is in effect, it may modify the pathnames to be absolute whether or not they were as loaded from disk. This method can be used to query the state of the original egg file from disk.

Definition at line 82 of file eggData.I.

◆ read() [1/2]

bool EggData::read ( Filename  filename,
std::string  display_name = std::string() 
)

Opens the indicated filename and reads the egg data contents from it.

Returns true if the file was successfully opened and read, false if there were some errors, in which case the data may be partially read.

error is the output stream to which to write error messages.

Definition at line 65 of file eggData.cxx.

References set_egg_filename, and Filename::set_text().

◆ read() [2/2]

bool EggData::read ( std::istream &  in)

Parses the egg syntax contained in the indicated input stream.

Returns true if the stream was a completely valid egg file, false if there were some errors, in which case the data may be partially read.

Before you call this routine, you should probably call set_egg_filename() to set the name of the egg file we're processing, if at all possible. If there is no such filename, you may set it to the empty string.

Definition at line 107 of file eggData.cxx.

◆ recompute_polygon_normals()

void EggData::recompute_polygon_normals ( )
inline

Recomputes all the polygon normals for polygon geometry at this group node and below so that they accurately reflect the vertex positions.

Normals are removed from the vertices and defined only on polygons, giving the geometry a faceted appearance.

This function also removes degenerate polygons that do not have enough vertices to define a normal. It does not affect normals for other kinds of primitives like Nurbs or Points.

This function does not remove or adjust vertices in the vertex pool; it only adds new vertices with the normals removed. Thus, it is a good idea to call remove_unused_vertices() after calling this.

Definition at line 164 of file eggData.I.

References EggGroupNode::recompute_polygon_normals().

◆ recompute_vertex_normals()

void EggData::recompute_vertex_normals ( double  threshold)
inline

Recomputes all the vertex normals for polygon geometry at this group node and below so that they accurately reflect the vertex positions.

A shared edge between two polygons (even in different groups) is considered smooth if the angle between the two edges is less than threshold degrees.

This function also removes degenerate polygons that do not have enough vertices to define a normal. It does not affect normals for other kinds of primitives like Nurbs or Points.

This function does not remove or adjust vertices in the vertex pool; it only adds new vertices with the correct normals. Thus, it is a good idea to call remove_unused_vertices() after calling this.

Definition at line 145 of file eggData.I.

References EggGroupNode::recompute_vertex_normals().

◆ resolve_egg_filename()

bool EggData::resolve_egg_filename ( Filename egg_filename,
const DSearchPath searchpath = DSearchPath() 
)
static

Looks for the indicated filename, first along the indicated searchpath, and then along the model_path.

If found, updates the filename to the full path and returns true; otherwise, returns false.

Definition at line 44 of file eggData.cxx.

◆ strip_normals()

void EggData::strip_normals ( )
inline

Removes all normals from primitives, and the vertices they reference, at this node and below.

This function does not remove or adjust vertices in the vertex pool; it only adds new vertices with the normal removed. Thus, it is a good idea to call remove_unused_vertices() after calling this.

Definition at line 177 of file eggData.I.

References EggGroupNode::strip_normals().

◆ write_egg() [1/2]

bool EggData::write_egg ( Filename  filename)

The main interface for writing complete egg files.

Definition at line 212 of file eggData.cxx.

◆ write_egg() [2/2]

bool EggData::write_egg ( std::ostream &  out)

The main interface for writing complete egg files.

Definition at line 231 of file eggData.cxx.

Member Data Documentation

◆ get_auto_resolve_externals

bool EggData::get_auto_resolve_externals
inline

Indicates whether the EggData object will automatically resolve any external references when read() is called.

The default is false.

Definition at line 72 of file eggData.h.

◆ get_coordinate_system

CoordinateSystem EggData::get_coordinate_system
inline

Returns the coordinate system in which the egg file is defined.

Definition at line 73 of file eggData.h.

Referenced by load_externals(), and merge().

◆ get_egg_filename

const Filename & EggData::get_egg_filename
inline

Returns the directory in which the egg file is considered to reside.

Definition at line 74 of file eggData.h.

Referenced by EggCharacterCollection::check_errors().

◆ get_egg_timestamp

time_t EggData::get_egg_timestamp
inline

Returns the timestamp of the egg file on disk, at the time it was opened for reading, or 0 if this information is not available.

Definition at line 75 of file eggData.h.

◆ set_auto_resolve_externals

void EggData::set_auto_resolve_externals
inline

Indicates whether the EggData object will automatically resolve any external references when read() is called.

The default is false.

Definition at line 72 of file eggData.h.

◆ set_coordinate_system

void EggData::set_coordinate_system

Changes the coordinate system of the EggData.

If the coordinate system was previously different, this may result in a conversion of the data.

Definition at line 73 of file eggData.h.

Referenced by SomethingToEggConverter::handle_external_reference().

◆ set_egg_filename

void EggData::set_egg_filename
inline

Sets the filename–especially the directory part–in which the egg file is considered to reside.

This is also implicitly set by read().

Definition at line 74 of file eggData.h.

Referenced by read().

◆ set_egg_timestamp

void EggData::set_egg_timestamp
inline

Sets the timestamp of the egg file on disk, at the time it was opened for reading.

This is also implicitly set by read().

Definition at line 75 of file eggData.h.


The documentation for this class was generated from the following files: